Feature/issue 529 update pods

[sosnovsky]

This PR includes:

• all pods and gems updated to the latest versions
• use Swift Package Manager for mailcore2 library (Cocoapods version doesn't work on M1 Macs)
• building and running tests fixed for M1 Macs
• swiftformat is used from embedded pod (instead of system one). This change is recommended in swiftformat repository - https://github.com/nicklockwood/SwiftFormat#alternative-locally-installed-swiftformat, as previous config could lead to inconsistencies in formatting for different team members (initially swiftformat failed to run for me, possibly because I'm using zsh instead of bash and Xcode failed to find system swiftformat)

close #529
close #285 // edited tom - this also fixed this issue
close #302 // edited tom - also this

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Tests:

• I ran unit_tests - all tests passed
• wasn't able to run UI tests as I need flowcrypt-ios/FlowCryptUITests/test-ci-secrets.json file

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To be filled by reviewers

I have reviewed that this PR... (tick whichever items you personally focused on during this review):

• addresses the issue it closes (if any)
• code is readable and understandable
• is accompanied with tests, or tests are not needed
• is free of vulnerabilities
• is documented clearly and usefully, or doesn't need documentation

[tomholub]

Could you have a look at the CI tests - can you access them? https://flowcrypt.semaphoreci.com/workflows/90cb5578-60f3-4714-ba4f-11a037d5eae9?pipeline_id=72763e1f-a583-4292-a1e3-01f84c9f4302

[sosnovsky]

@tomholub no, I get 404 error there

[tomholub]

Try again now - sent invite (you may need to log in with GitHub)

[sosnovsky]

Yes, now I can see them, checking, thanks!

[tomholub]

Changes all look good.

It seems maybe you also fixed #302 as a side effect? Since we are checking a particular commit from master now, where the http issue was supposed to be fixed?

[tomholub]

Your Ruby version is 2.5.1, but your Gemfile specified 3.0.2 00:06

Semaphore has a command for this, something like sem-version ruby 3.0.2 could do. So you don't have to manually change the ruby version on the machine.

[tomholub]

docs https://docs.semaphoreci.com/programming-languages/ruby/#supported-ruby-versions

[sosnovsky]

Yes, http issue should be fixed too ✅

I checked Semaphore documentation - for macOS images they have only ruby 2.3.7 and 2.5.1 preinstalled (https://docs.semaphoreci.com/ci-cd-environment/macos-xcode-11-image/#ruby), so I changed ruby version back to 2.5.1 and installed previous Cocoapods version which supports ruby 2.5